全髋关节置换术后股骨偏心距与聚乙烯磨损的相关性研究

发布时间：2018-05-31 16:26

本文选题：关节成形术 + 置换　；参考：《中国矫形外科杂志》2017年03期

【摘要】：[目的]探讨人工全髋关节置换术后股骨偏心距与聚乙烯磨损的相关性。[方法]用计算机辅助测量方法测量髋关节置换聚乙烯内衬的线性磨损。以股骨头中心参照于髋臼杯开口面轴线的位移,计算线性磨损的大小与方向。对2008年11月~2015年10月本院骨科78例使用非骨水泥型金属对聚乙烯假体患者的X线片进行股骨偏心距和聚乙烯磨损的测量,平均随访时间4.08年。[结果]平均线性磨损率(0.18±0.04)mm/年,平均线性磨损方向与髋臼杯轴线的夹角(33.0±18.2)°。术中股骨偏心距得到重建组的线性磨损率小于未得到重建组(P0.001)。股骨偏心距得到重建组与未得到重建组的磨损方向差异无统计学意义(P=0.210)。对股骨双侧偏心距差值与年磨损率进行相关分析,两者成正相关性(r=0.669,P0.001)。[结论]人工全髋关节置换术中重建股骨偏心距可减慢聚乙烯内衬磨损速度,延长髋关节假体的寿命,改善远期效果。
[Abstract]:Objective: to investigate the correlation between femoral eccentricity and polyethylene wear after total hip arthroplasty. [methods] Linear wear of PE liner was measured by computer aided measurement. The size and direction of linear wear were calculated by reference to the displacement of the opening axis of the acetabular cup at the center of the femoral head. From November 2008 to October 2015, 78 cases of orthopedic patients in our hospital using non-bone cement type metal to measure the femoral eccentricity and polyethylene wear of polyethylene prosthesis were studied. The average follow-up time was 4.08 years. [results] the average linear wear rate was 0. 18 卤0.04)mm/ years, and the angle between the average linear wear direction and the acetabular cup axis was 33. 0 卤18. 2 掳. The linear wear rate of the reconstruction group was lower than that of the non-reconstructed group (P 0.001). There was no significant difference in wear direction between the reconstruction group and the unreconstructed group. The correlation analysis between the difference of bilateral eccentric distance of femur and the annual wear rate showed that there was a positive correlation between the difference of eccentric distance of femur and the annual wear rate. [conclusion] the reconstruction of femoral eccentricity in total hip arthroplasty can slow down the wear rate of polyethylene lining, prolong the life of hip prosthesis and improve the long-term effect.
【作者单位】：武汉大学人民医院;
【分类号】：R687.4

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